The nonradiative changeover charges follow the formulation WNR = W (0) exp(-alphap), wherever p is the quantity of phonons matching the Strength gap. The nonradiative transition fees of Er3+ show temperature dependence consistent with the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative peace fees is complex with https://erybyabcrystal07395.blogsumer.com/32385051/the-best-side-of-er-yb-yab-crystal